Archive image from page 374 of Department bulletin (1923-1929). Department bulletin departmentbul11261150unit Year: 1923-1929. Bui. 1136, U. S. Dept. of Agriculture. Plate III. Fig. I.—A Piston Type of Balanced Reducing Valve Especially Adapted to Service in which the Flow of Steam Is Continuous. The low-pressure steam acts on the piston P in the cylinder and tends to close the valve V. Loose weights hung on the horizontal lever counteract this tendency. The dashpot D steadies the motion of the piston and valve, preventing bouncing.

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Keywords: 1920, 1923-1929, archive, book, bookauthor, bookdecade, bookpublisher, bookyear, drawing, historical, history, illustration, image, page, picture, print, reference, united_states_dept_of_agriculture, vintage, washington_d_c_the_dept_supt_of_docs_g_p_o_